Warp stop-motion for looms.



No 737,544. PATENTED AUG. 25,v 1903.

J. H. WOLGER.

WARP STOP MOTION FOR LOOMS.

APPLIU ATION FILED D110. 29, 1902'.

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No. 737,544 PATENTED AUG. 25, 1903.

J. H. WOLGBR.

WARP STOP MOTION FOR LOOMS.

APPLICATION FILED 1330.29, 1902.

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No. 737,544. I PATENTED AUG. 25, 1903. J. H. WOLGER. WARP STOP MOTION FOR LOOMS.

APPLIOAIION FILED DEC. 29. 1902.

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UNITED STATES Patented August 25, 1903.

PATENT OFFICE.

JAMES H. WOLGER, OF METHUEN, MASSACHUSETTS, ASSIGNOR OF TWO- TI'IIRDS TO SAMUEL C. FOSS AND CHARLES E. COLLINS, OF METHUEN,

MASSACHUSETTS.

WARP STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 737,544, dated August 25, 1903.

Application filed December 29, 1902. Serial No. 136,945. (No model.)

To all whom it may concern:

Be it known that I, JAMES H. WOLGER, a citizen of the United States, and a resident of Methuen, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Warp Stop-Motions for Looms, of which the following is a specification.

This invention relates to improvements in warp stop-motions for looms; and it has for its object the provision of an improved means for automatically stopping the loom upon the breaking of any one of the warp-threads, and for such purpose I make use of mechanism as will hereinafter be more fully shown and described, reference being had to the accompanying drawings, wherein- Figure l is a partial end elevation of a loom provided with my improved warp stop-motion. Fig. 2 is a partial front elevation of Fig. 1. Fig. 3 is a top plan view of the mechanism comprising the stop-motion. Fig. 4 is a detail sectional view showing the feeler, the separator plate or bar, and heddles arranged on opposite sides of such plate or bar. Fig. 5 is a detail perspective view of the feeler rocker-shaft and spring-pressed clutch longitudinally movable thereon. Fig. 6 is a detail perspective view of the lifter-arm for raising the latch on the shipper device; and Fig. 7 is a detail side elevation of a portion of the stop device, showing the shipper-lever released for stopping the loom.

Similar letters refer tmsimilar parts wherever they occur on the different parts of the drawings.

In the'drawings, A is the frame of the loom,

and B is the breast-beam thereon, as usual. C is the rotary driving-shaft, connected by suitable and well-known mechanism to the lay D for imparting an oscillating motion to the latter, as is common in looms.

On the rotary driving-shaft O- is secured a gear C, the teeth of which mesh in the larger gear E, secured to the cam-shaft E, which latter operates the harnesses and imparts a reciprocating motion to the shuttle, as usual.

F and F are the respective fast and loose pulleys ou the driving-shaft C, and G is the belt-shipper, by means of-which the drivingbelt H may be shipped by the usual springpressed shipper-lever I from the fast to the loose pulley, and vice versa, as may be desired, during the operation of the loom.

K is the overhead rocker-shaft, provided with sheaves to which are attached the straps K K, the lower ends of which are secured to the respective heddle-bars L M, on which are loosely suspended the slotted heddles I m, provided with the respective perforations or eyes Z m, through which the warp-threads N N are loosely guided, as is common in looms of this construction.

Between the opposite rows of heddles Z or is located the stationary separator plate or bar 0, that serves as a rest or abutment for the heddles when the rocking feeler comes in contact with any one or more of such heddies when released by the breaking of warpthreads.

The upper end of the shipper-lever I is guided in a slot t" in the usual holding-plate I, having a notch t', in which the lever I is held locked during the running of the loom, as shown in the drawings.

- My improved automatic warp stop-motion which I use in connection with a loom is constructed as follows: On the shaft E is secured a cam E, which during its rotation actuates a weighted or spring-pressed pivoted lever P, to the forward end of which is pivotally connected a link 19, having its upper end pivot= ally connected to an arm Q, rigidly secured to a toothed clutch member Q, that is loosely journaled on a rocking feeler-shaft R, to which is rigidly secured a correspondinglyshaped clutch member R, as shown in detail in Fig. 5, the two members constituting a shipper-lever-controlling device. To said shaft R is rigidly secured in a suitable manner the feeler S, which during the running of the loom is caused to oscillate freely below the separator-plate O and lower'ends of the heddles withoutcontacting with the latter as long as the warp-threads remain unbroken.

In practice I make the opposite sides of the separator-plate O serrated, and I also prefer to make the opposite edges of the feeler S serrated, as shown in Figs. 2 and 4, so as to prevent the heddles from being twisted or bent sidewise when held confined between said separator-plate and feeler during the breaking of a warp-thread. The clutch members Q R are normally held interlocked, as shown in Fig. 2, by a suitable spring q, surrounding the rocker-shaft R between the yielding clutch member Q and an arm or collar s, secured to said shaft and supporting the feeler S, as shown in Figs. 2, 3, 4E, and 5. A in Fig. 3 is a cross-beam secured to the side frames of the loom, and to said beam or I support is pivotally connected at a a bellcrank lever, one leg U of which bears against the end of the spring-pressed clutch member Q, and to the other leg U of said bell-crank lever is attached a rod or wire U, the forward end of which is suitably connected to a lifter-arm V by means of an intermediate post U The arm V is pivotally connected to the frame of the loom at V and is provided with a side lip or projection V, upon which is loosely supported a latch W, the

forward end of which is pivotally connected to a shipper-lever-releasing dog X, pivoted at X to the frame A of the machine, as shown in Figs. 1 and 7.

To the under side of the lay D is secured a knock-off bracket or projection d for a purpose as will hereinafter be described.

The operation of the device is as follows: During the normal running of the loom't-he feeler S is rocked to opposite sides below the stationary separator bar or plate 0 without contacting with the lower ends of theheddles lm, and during such normal running of the loom the clutch member Q, bell-crank lever U U, rod U, lifter-arm V, latch W, and releasing-dog X remain in their respective normal positions. (Shown in full lines in Figs. 1 and 3.) If a warp-thread should break, its heddle will drop below the lower edge. of the separator-bar O, causing the oscillating feeler S to contact with the lower projectingend of such released heddle and causing the feeler and its shaftRto come toastop,and while held stationary the arm Q, actuated by. the cam.

E" and affixed to the yielding clutch member Q, continues its motion, causing said clutch member to be released from the now stationary clutch member R and slide away from the latter on the shaft R, and during such sliding motion of said clutch member Q it causes the bell-crank lever U U to turn to the position shown in dotted lines in Fig. 3, thereby causing the rod U to be moved in the direction of arrow shown in Fig. 3. During such motion of said rod U the lifter-arm V is swung from the normal position shown in Fig. 1 to that shown in Fig. 7, causing the latch W to be raised by the projection V and held in the position shown in Fig. 7. As

the lay D continues to move in the direction of arrow shown in Fig. 7 its bracket or projection 01 comes in contact with the now raised latch W and forces it backward to the position shown in Fig. 7, and thereby causes the upper end of the dog X to engage the shipper-lever I, so as to release it from the locking-notch 2', and when so liberated the springpressed lever I is automatically moved to the position shown in dotted lines in Fig. 2, thereby causing the driving-belt H to be shipped from the fast pulley F to the loose pulley F, and thus causing the loom to be automatically stopped.

The invention is very simple in construction, is composedrof very few parts, and can readily be applied to looms of any well-known I shipper-lever, a controlling-clutch therefor arranged on the rocker-shaft, and intermediate connecting mechanism between the clutch and the shipper mechanism to release the latter and stop the loom upon contact between the feeler and one of the heddles released by the breaking of a warp-thread.

2. A warp stopmotion mechanism for looms comprising a series of heddles normally held inoperative by the warp threads, a rocker-shaft, a feeler carried by the shaft, means for oscillating the feeler and for holding it against a released heddle, a shipper-lever, acontrolling-clutch therefor arranged on the rocker-shaft, a bell-crank lever actuated by the clutch, and intermediate connecting mechanism between the clutch and the shipper-lever for automatically releasing the latter and causing the loom to be stopped when the feeler contacts with a released heddle upon the breakage of a warp-thread.

3. A warp -stop -motion mechanism for looms comprising a series of heddles normally held inoperative by the warp threads, a rocker-shaft, a feeler secured thereto, a constantly-rotating driving-shaft, a shipper-lever, a controlling clutch therefor on the rocker-shaft, intermediate connecting mechanism from the driver-shaft to the clutch to hold the feeler against a released heddle, a projection or bracket on the lay, a latch operatively actuated by the clutch, and intermediate connecting mechanism between the clutch and the shipper-lever to efiect automatic release of the latter and to causethe loom to be stopped by the projection on the lay contacting with the latch when held raised.

4. A warpstop motion mechanism for Its looms, comprising a series of heddles supported upon the warp-threads, a rocker-shaft arranged below the heddles, a feeler carried by the shaft, a springpressed clutch on the shaft, a shipper-lever, a latch, intermediate connecting mechanism from the clutch to the shipper-lever, and a projection on the lay for actuating the latch and shipper-mechanism so as to effect automatic stoppage of the 100m by breakage of the Warp-threads. 10

In testimony whereof I have affixed my signature in presence of two Witnesses.

JAMES H. WOLGER. Witnesses:

WM. F. GAUNT, JAMES WM. BUCKLEY. 

